Stable sealing glass for planar solid oxide fuel cell

Sohn, Seung Kook; Choi, Sunghoon; Kim, Gyeung-Ho; Song, Hyun Hoon; Kim, Goo-Dae

doi:10.1016/s0022-3093(01)01042-0

Cited by 140 publications

(69 citation statements)

References 7 publications

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“…The projected area of the sample viewed in side elevation was then used to characterize the sintering, deformation, sphere and flow temperatures of the glasses. 11 B, 27 Al, 29 Si and 31 P MAS-NMR spectra were recorded at 18.8, 18.8, 9.4 and 9.4T respectively, on Bruker AVANCE spectrometers, with 4 mm probes at 12.5 kHz spinning speed, except for 29 Si for which a 7 mm probe at 5 kHz was used. The Larmor frequencies were 128.4, 104.2, 79.4 and 162.3 MHz for 11 B, 27 Al, 29 Si and 31 P, respectively.…”

Section: Methodsmentioning

confidence: 99%

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A new formulation of barium–strontium silicate glasses and glass-ceramics for high-temperature sealant

Sharma¹,

Kothiyal²,

Montagne³

et al. 2012

International Journal of Hydrogen Energy

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Section: Methodsmentioning

confidence: 99%

“…BaOeCaOeAl 2 O 3 eB 2 O 3 eSiO 2 (BCABS) glass system has been studied for joining dissimilar metal and ceramic SOFC materials [11]. Haanappel et al [12] studied the behavior of BCABS seals in presence of oxidizing and reducing atmospheres and reported excess corrosion of interconnect.…”

Section: Introductionmentioning

confidence: 99%

A new formulation of barium–strontium silicate glasses and glass-ceramics for high-temperature sealant

Sharma¹,

Kothiyal²,

Montagne³

et al. 2012

International Journal of Hydrogen Energy

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“…[106][107][108][109][110] The commercialization of longlived, liquid metal batteries rests upon the development of longlasting, and robust insulating seals.…”

Section: Seals and Corrosionmentioning

confidence: 99%

Liquid Metal Electrodes for Energy Storage Batteries

Yin

Wang

et al. 2016

Advanced Energy Materials

161

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The increasing demands for integration of renewable energy into the grid and urgently needed devices for peak shaving and power rating of the grid both call for low‐cost and large‐scale energy storage technologies. The use of secondary batteries is considered one of the most effective approaches to solving the intermittency of renewables and smoothing the power fluctuations of the grid. In these batteries, the states of the electrode highly affect the performance and manufacturing process of the battery, and therefore leverage the price of the battery. A battery with liquid metal electrodes is easy to scale up and has a low cost and long cycle life. In this progress report, the state‐of‐the‐art overview of liquid metal electrodes (LMEs) in batteries is reviewed, including the LMEs in liquid metal batteries (LMBs) and the liquid sodium electrode in sodium‐sulfur (Na–S) and ZEBRA (Na–NiCl2) batteries. Besides the LMEs, the development of electrolytes for LMEs and the challenge of using LMEs in the batteries, and the future prospects of using LMEs are also discussed.

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“…1 [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. These seals must function at high [3].…”

Section: Motivation and Objectivesunclassified

Innovative Self-Healing Seals for Solid Oxide Fuel Cells (SOFC)

Singh¹

2012

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Executive SummarySolid oxide fuel cell (SOFC) technology is critical to several national initiatives. Solid State Energy Conversion Alliance (SECA) addresses the technology needs through its comprehensive programs on SOFC. A reliable and cost-effective seal that works at high temperatures is essential to the long-term performance of the SOFC for 40,000 hours at 800°C. Consequently, seals remain an area of highest priority for the SECA program and its industry teams. An innovative concept based on self-healing glasses was advanced and successfully demonstrated through seal tests for 3000 hours and 300 thermal cycles to minimize internal stresses under both steady state and thermal transients for making reliable seals for the SECA program. The self-healing concept requires glasses with low viscosity at the SOFC operating temperature of 800°C but this requirement may lead to excessive flow of the glass in areas forming the seal. To address this challenge, a modification to glass properties by addition of particulate fillers is pursued in the project. The underlying idea is that a non-reactive ceramic particulate filler is expected to form glass-ceramic composite and increase the seal viscosity thereby increasing the creep resistance of the glass-composite seals under load. The objectives of the program are to select appropriate filler materials for making glass-composite, fabricate glass-composites, measure thermal expansion behaviors, and determine stability of the glass-composites in air and fuel environments of a SOFC. Self-healing glass-YSZ composites are further developed and tested over a longer time periods under conditions typical of the SOFCs to validate the long-term stability up to 2000 hours. The new concepts of glass-composite seals, developed and nurtured in this program, are expected to be cost-effective as these are based on conventional processing approaches and use of the inexpensive materials. DE-09FE001390 -Innovative Self-Healing Seals for Solid Oxide Fuel Cells (SOFC) SinghUniversity of Cincinnati 2 Motivation and ObjectivesSolid oxide fuel cell (SOFC) technology is critical to National Energy Security and Energy Independence, and at the same time to protect our environment [1, 2]. SECA (Solid State Energy Conversion Alliance) initiatives address these needs through its comprehensive programs [1, 2]. Among the many fuel cell technologies, the SOFC functions at much higher temperatures of 650-900° C and offers unique advantages of utilization of the more abundant fossil-derived fuels (hydrocarbons) as well as hydrogen. Additionally, much higher efficiencies than the low temperature fuel cell are possible for the SOFC when integrated with the combined cycle utilizing the waste heat. Reliable seals are essential to the long-term performance, cost, and reliability of the SOFC because a leaky seal will degrade cell performance and lead to wastage of fuels in an operating fuel cell stack. Consequently, the SECA program has recognized the Seals for SOFC as an important technology area that requires p...

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Stable sealing glass for planar solid oxide fuel cell

Cited by 140 publications

References 7 publications

A new formulation of barium–strontium silicate glasses and glass-ceramics for high-temperature sealant

A new formulation of barium–strontium silicate glasses and glass-ceramics for high-temperature sealant

Liquid Metal Electrodes for Energy Storage Batteries

Innovative Self-Healing Seals for Solid Oxide Fuel Cells (SOFC)

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